In today’s market, it is imperative to be knowledgeable and have an edge over the competition. ACI members have it…they are engaged, informed, and stay up to date by taking advantage of benefits that ACI membership provides them.
Read more about membership
Become an ACI Member
Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
ACI World Headquarters
38800 Country Club Dr.
Farmington Hills, MI
ACI Middle East Regional Office
Second Floor, Office # 02.01/07
The Offices 02 Building, One Central
Dubai World Trade Center Complex
Phone: +971.4.516.3208 & 3209
Feedback via Email
Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Performance of Concrete After Ten Years of Exposure in the Arctic Marine Environment
Author(s): M. H. Zhang, A. Bilodeau, and V. M. Malhotra
Publication: Special Publication
Appears on pages(s): 621-646
Keywords: aggregates; arctic marine environment; chloride-ion pen-etration;
compressive strength; concrete; fibre; fly ash; silica fume;
Abstract:In 1986, as a part of CANMET’s on-going program on the long-term durability ofconcrete in marine environment, twelve concrete panels, each 3.7 meter long, were installed at a site at Nanisivik (Latitude 73’ North), Baffin Island, North West Territories, Canada. Six of the panels were made with normal-weight aggregate concrete, and the other six panels were made with concrete incorporating expanded shale lightweight aggregate. Other variables in the concrete mixtures included steel fibres, and the replacement of portland cement by fly ash, slag, silica fume, or a combination of fly ash and silica fume. The cement replacement levels used ranged from 10 % for silica fume to 50 % for ground granulated blast-furnace slag. The water-to-cementitious materials ratio of all these concretes ranged from 0.37 to 0.42. In 1996, visual examination was made and cores were taken from the concrete panels to determine the chloride content at various depths from the exposure surface. After 10 years of exposure in the Arctic marine environment, the panels made with normal weight aggregate showed very little mass loss on the surface due to ice abrasion, whereas panels made with lightweight aggregate seems to have some mass loss on the surface exposed to the tidal zone. The steel fibre-reinforced panels appear to have less damage and cracking than the corresponding ones without fibres. Concrete incorporating supplementary cementing materials such as fly ash, silica fume, slag, or a combination of fly ash and silica fume generally had better resistance to the penetration of chloride ions compared with corresponding control portland cement concrete of similar water-to- cementitious materials ratio. In general, the concentration of chloride ions in fibre-reinforced concrete was similar to or lower than those of the corresponding non-fibre-reinforced concrete exposed. For the non-fibre- reinforced portland cement concrete, the use of either normal weight limestone aggregate or expanded shale lightweight aggregate did not seem to significantly affect the resistance of the concrete to the chloride-ion penetration. However, fibre-reinforced portland cement concrete made with lightweight aggregate appears to have lower chloride-ion content than that made with normal weight aggregate.
Click here to become an online Journal subscriber